Home / 145,530.04-218,348.22-61,311.30

Finding the Fourth Proportional to 145,530.04, 218,348.22 and 61,311.30

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Solution

The fourth proportional to 145,530.04, 218,348.22 and 61,311.30 is: 91,989.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,530.04 : 218,348.22 = 61,311.30 : x
  2. Step 2: Convert to fraction form
    145,530.04/218,348.22 = 61,311.30/x
  3. Step 3: Cross multiply
    145,530.04x = 218,348.22 × 61,311.30
  4. Step 4: Simplify right side
    145,530.04x = 13,387,213,220.89
  5. Step 5: Solve for x
    x = 13,387,213,220.89/145,530.04
  6. Step 6: Final answer
    x = 91,989.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.